What plant hardiness zone is Kollerschlag

Kollerschlag is located at Rohrbach, Upper Austria (Oberösterreich), OÖ, Austria.

Plant hardiness zone (winter frost zone or gardening zone) for Kollerschlag is 6a by the USDA scale.

Coldest zone's winter temperature is −23.3 … −20.6 °C.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.

Alternative climatic zone of gardening for Kollerschlag by UK RHS scale is H7.

Plants of H7 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H7 RHS.

Kollerschlag @ wikipedia.

* The lowest temperature in Kollerschlag was -21 °C on 12/02/2012.